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In music, function (also referred to as harmonic function [1]) is a term used to denote the relationship of a chord [2] or a scale degree [3] to a tonal centre.Two main theories of tonal functions exist today:
A guitarist performing a C chord with G bass. In Western music theory, a chord is a group [a] of notes played together for their harmonic consonance or dissonance.The most basic type of chord is a triad, so called because it consists of three distinct notes: the root note along with intervals of a third and a fifth above the root note. [1]
The predominant harmonic function is part of the fundamental harmonic progression of many classical works. [6] The submediant (vi) may be considered a predominant chord or a tonic substitute. [7] The dominant preparation is a chord or series of chords that precedes the dominant chord in a musical composition.
In music theory, Roman numeral analysis is a type of harmonic analysis in which chords are represented by Roman numerals, which encode the chord's degree and harmonic function within a given musical key. Specific notation conventions vary: some theorists use uppercase numerals (e.g.
In music theory, the dominant triad is a major chord, symbolized by the Roman numeral "V" in the major scale. In the natural minor scale, the triad is a minor chord, denoted by "v". However, in a minor key, the seventh scale degree is often raised by a half step (♭ to ♮), creating a major chord.
In music theory, the half-diminished seventh chord (also known as a half-diminished chord or a minor seventh flat five chord) is a seventh chord composed of a root note, together with a minor third, a diminished fifth, and a minor seventh (1, ♭ 3, ♭ 5, ♭ 7).
In music theory, the "dominant seventh" described here is called a major-minor seventh, emphasizing the chord's construction rather than its usual function. [27] Dominant sevenths are often the dominant chords in three-chord progressions, [ 18 ] in which they increase the tension with the tonic "already inherent in the dominant triad".
The term chord function may refer to: Diatonic function – in music, the role of a chord in relation to a diatonic key; In mathematics, the length of a chord of a circle as a trigonometric function of the length of the corresponding arc; see in particular Ptolemy's table of chords .